<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="mystyle.css">
        <meta charset="utf-8">
        <title>css三种样式编写</title>
        <style>
            h1 {
                text-align: center;
            }
        </style>
    </head>

    <body style="background-color:antiquewhite">
        <h1>猫</h1>
        <h2>美国短毛猫</h2>
        <h2>布偶猫</h2>
    </body>
</html>